These are the most unusual, insane and bizarre monsters around — but they're not necessarily Eldritch Abominations, nor are they generally "cryptids" in the usual sense, as even cryptozoology has its limits as to what might plausibly exist. No, these creatures are just "What the heck is that?" weird. They don't have to be from an acid trip either in-universe or as a meta-example. They just have to be unconventional and too strange to fit in any of the other categories.